Electrode holder



June 13, 1939. F MILLER 2,162,633

ELECTRODE HOLDER Filed April 23, 1938 In ven ior e; 21am; :5 M2 zz Aiiorneus Patented June 13, 1939 1 UNl'lED STATES PATENT OFFICE Claims.

an electrode holder of the character described which will be comparatively simple in construction, strong, durable, highly eflicient and reliable in use, compact, light in weight and which may be manufactured at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawing wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

bodiment of the invention.

Figure 2 is a plan view thereof. Figure 3 is a view invertical longitudinal section, taken substantially on the line 3-3 of Fig. 2.

Figure 4 is a cross sectional view, taken substantially on the line 6-4 of Fig. 3.

Referring now to the drawing i detail, it will be seen that the embodiment of the invention which has been illustrated comprises a handle I of suitable metal, said handle being arcuate in cross section and terminating in a flat forward end portion 2. Mounted on the rear end portion of the handle 8 and projecting therefrom is a tubular grip 3 of suitable insulating material which is secured to said handle, as at 4. Mounted on the flat bar portion 2 of the handle I is a metallic bar 5. The bar 5 is secured to the bar portion 2 by a bolt 6 extending therethrough and threaded into a clamp I mounted transversely on said bar portion 2. A guide 8 is mounted between the elements 2 and 5 on the bolt 6, said guide also functioning as a spacer for saidele- 'ments. The bar 5 terminates in an angularly extending rear end portion 9 on which a circular shield II of suitable insulating material is mounted, said shield encircling the forward portion of the handle I, the bar 5, etc.

The reference numeral I2 designates a head in the form of a substantially ovate loop of suitable Figure l is a view in side elevation of an em- The loop I2 has formed therein open- Figs. 2 and 3 of the drawing or, if desired, said electrode may be mounted transversely in the loop I2 as suggested in broken lines-in Fig. 2 of the drawing.

Slidably mounted on the guide 8 between the elements 2 and 5 and projecting into the loop I2 for releasably clamping the electrode I4 in position is a substantially flat, metallic jaw I5. Pivotally mounted at an intermediate point for rocking movement on the rear end portion of the handle I is an operating lever I6 for the jaw I5. A cover of insulating material i1 is mounted on the rockable lever I6 and secured thereto, as at I8. The rear portion I9 of the insulating covering I1 is substantially tubular in form and encloses the corresponding portion of the lever I6. The reference numeral 20 designates the hinge which connects the lever I6 to the handle I. The hinge structure 20 also assists in securing the grip 3 imposition on the handle I. The jaw I5 is operatively connected to the lever I8 for actuation thereby through the medium of a link 2 I, said link including a turnbuckle 22 for adjustment. Extending through the tubular grip 3 is a. conductor 23 for connection with a suitable source of current. The conductor 28 is adapted to rest in the groove or channel defined by the arcuate handle I. The forward end portion of the conductor 23 is skinned and secured beneath the clamp I on the bar 2. It will be noted that the conductor 23 passes through an opening which is provided therefor in the shield I I.

It is thought that the operation of the device will be readily apparent from a consideration of the foregoing. When the rear end of the rockable lever I6 is swung toward the grip 3, the jaw I5 is retracted through the medium of the adjustable link 2|. The electrode Il may then be inserted in the loop I2 either in the position shown in full lines or that indicated in broken lines in Fig. 2 of the drawing. The lever I6 is then tucked in the opposite direction for moving the jaw I5 forwardly into clamping engagement with the electrode I, as shown to advantage in Fig. 3 of the drawing.' When this is done, the pivotal connection 24 between the link 2| and the lever 'I6 passes dead center for retaining the jaw I5 in clamping position. The turnbuckle 22 permits adjustment of the connection between the jaw l5 Eli hm tes guide t.

It is believed that many advantages of an electrode holder constructed in accordance with v the present invention will he readily understood and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrange ment or" parts may he resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

l. in electrode holder comprising a pair of spaced metallic bars, a metallic loop, for the reception of an electrode, mounted on one end portion of said bars, a handle on one of the bars, a roclzable lever plvotally mounted, at an intermediate point, on said handle, a jaw slidably mounted between the fears, said jaw projecting into the loop and engagealole with the electrode in said loop for clamping said electrode in position, and means operatively connecting said jaw to the rockable lever for actuation thereby.

2. An'electrode holder comprising a pair of spaced metallic bars, a metallic loop, for the reception of an electrode, mounted on one end portion or said bars, a handle on one of the bars, a rockable lever pivotally mounted, at an intermediate point, on said. handle, a. jaw slidably mounted between the bars, said jaw projecting into the loop engageahle with the electrode in said loop for clamping said electrode in position, and means operativeiy connecting said jaw to the roclrahle lever for actuation thereby, said means comprising a link having one end pivotally connected to the jaw and its other end pivotally connected to the lever, said link including a turn- .buckle for adjusting the jaw relative to the lever.

3.'An electrode holder comprising a pair of masses modating the electrode, a guide mounted between the hers, a jaw sliolalcle on the guide between the bars, said law projecting into the loop and engageable with the electrode in the loop for clamping said electrode in position, a handle on one oi the tiers, lever rcclzahly mounted, at an intermediate point, on handle, and adjustshi =oceans ope ativelv connecting the jaw to the isle lever for actuation thereby.

An electrode holder comprising a pair of spaced metallic fears, a guide mounted between said here, substantially ovate loop secured to one end portion of the cars, said loop for the reception oi electrode, a jaw slidahly mounted on the guide between the bars and engageable with the electrode for releasably clamping some in the loop, sald jaw having a slot therein accommodating the guide, a'handle on one of the bars, a tubular grip of insulating material mounted on said handle, a conductor passing through the tubular grip, common means for electrically connecting the conductor to the cars and for securing said bars and the guide together, and means for actuating the jaw.

5. An electrode holder comprising a pair or spaced metallic liars, a guide mounted between said bars, a substantially ovate loop secured to one end portion of the bars, said loop for the reception of an electrode, a jaw slidahly mounted on the guide lcctween the bars and engageable with the electrode for releasably clamping same in the loop, said jaw having a slot therein accommodating the guide, a handle on one of the bars, a tubular grip of insulating material mounted on said handle, a conductor passing through the tubular grip, common means for electrically connecting the conductor to the bars and for securing said hers and the guide together, and means for actuating the jaw, said actuating means including a lever rockably mounted at an intermediate point on the handle, and a link having one end pivotally connected to the jaw and its other end plvotally connected to one end portion 01' the lever, said link comprising a turnbuckle for lengthening or shortening said link. FORD S. MILLER. 

